I've been having trouble getting the GTK and WPE bots to build a patch where I removed an EnabledAtRuntime directive in DocumentOrShadowRootAnimations.idl and JSShadowRoot.cpp wasn't regenerated to account for this. Patch: https://bugs.webkit.org/attachment.cgi?id=408928 Build result: https://ews-build.webkit.org/#/builders/36/builds/16985